<div id="sidebar">
    <ul>
        <li>
        <a onclick="javascript:showElement('v-menu')">Student management</a>
            <ul id="v-menu" class="v-menu">
                <li><a href="action/addStudent.jsp">Add student</a></li>
                <li><a href="action/editCourse.jsp">Edit student</a></li>
                <li><a href="action/block.jsp">Block</a></li>
            </ul>
        </li>
        <li><a onclick="javascript:showElement('v-menu2')">Faculty management</a>
            <ul id="v-menu2" class="v-menu2">
                <li><a href="action/addFaculty.jsp">Add faculty</a></li>
                <li><a href="action/editFaculty.jsp">Edit faculty</a></li>
                <li><a href="action/block.jsp">Block</a></li>
            </ul>
        </li>
        <li><a href="courseManagement.jsp">Course management</a></li>
        <li><a href="viewFeedback.jsp">View feedback</a></li>
        <li><a href="searchInfo.jsp">Search information</a></li>
        <li><a href="sendMessage.jsp">Post message</a></li>
        <li><a href="changePassword.jsp">Change password</a></li>
    </ul>
</div>